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Air conditioning apparatus for vehicle

Inactive Publication Date: 2000-11-21
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, defrosting performance of a windshield is decreased.

Method used

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  • Air conditioning apparatus for vehicle
  • Air conditioning apparatus for vehicle
  • Air conditioning apparatus for vehicle

Examples

Experimental program
Comparison scheme
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Embodiment Construction

A preferred embodiment of the present invention will be described hereinafter with reference to the accompanying drawings.

A ventilation system of an air conditioning apparatus for a vehicle includes a blower unit (not shown), and an air conditioning unit 10 shown in FIG. 1. The air conditioning unit 10 is disposed in a passenger compartment below an instrument panel at an approximate center in a right-left direction of the vehicle, and the blower unit is disposed in the passenger compartment at a side position shifted from the air conditioning unit 10 in the right-left direction.

The blower unit includes an inside / outside air switching box for introducing inside air (i.e., air inside the passenger compartment) and outside air (i.e., air outside the passenger compartment), and a blower for blowing air from the inside / outside air switching box into the passenger compartment.

In the air conditioning unit 10, both an evaporator (i.e., cooling heat exchanger) 12 and a heater core (i.e., he...

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PUM

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Abstract

In an air conditioning apparatus for a vehicle, a heater core is disposed in an air conditioning case so that a cool air bypass passage through which air bypasses the heater core is provided at an upper side of the heater core. When a foot / defroster mode is set, a defroster door for opening and closing a defroster opening is rotated to an intermediate position between a fully opening position and a fully closing position of the defroster opening. Therefore, a first air passage through which air from the cool air bypass passage flows into the defroster opening is provided between an inner wall portion of the air conditioning case and a top end of the defroster door. Further, a second air passage through which air from an air mixing chamber flows into the defroster opening is provided between an inner wall portion of the air conditioning case and a side end of the defroster door, and an amount of air passing through the second air passage is set to be larger than that of the first air passage. Thus, during the foot / defroster mode, temperature of air blown from the defroster opening can be improved.

Description

This application is related to and claims priority from Japanese Patent Application No. Hei. 10-9041 filed on Jan. 20, 1998, the contents of which are hereby incorporated by reference.1. Field of the InventionThe present invention relates to an air conditioning apparatus for a vehicle, in which a temperature difference between air blown from a foot opening toward the foot portion of a passenger in a passenger compartment and air blown from a defroster opening toward a windshield is decreased during a foot / defroster mode where both the foot opening and the defroster opening are opened.2. Description of Related ArtIn a conventional air conditioning apparatus for a vehicle, an amount of air passing through a heating heat exchanger and an amount of air bypassing the heating heat exchanger are adjusted by an air mixing door so that a temperature of air blown into a passenger compartment is controlled. In the conventional air conditioning apparatus, a cool air bypass passage through which...

Claims

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Application Information

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IPC IPC(8): B60H1/00
CPCB60H1/00064B60H2001/00107B60H2001/00092
Inventor TSUNOOKA, TATSUONAITO, NOBUYASUKANDA, HIROSHINAKAMURA, TAKESHI
Owner DENSO CORP